/*
 * Copyright 2018 Analytics Zoo Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.intel.analytics.zoo.feature.common

import scala.reflect.ClassTag


private[zoo] abstract class ArrayLike[T: ClassTag] extends Serializable {
  def length: Int = throw new Error()

  def apply(i: Int): T = throw new Error()

  def free(): Unit = {}
}

private[zoo] class ArrayLikeWrapper[T: ClassTag](array: Array[T]) extends ArrayLike[T] {
  override def length: Int = array.length

  override def apply(i: Int): T = array(i)
}

